How do you use languor as a noun in sentence?

Here are some examples of how to use "languor" as a noun in a sentence:

* After a long day of hiking, a delicious sense of languor settled over them. (Describes a feeling of pleasant tiredness)

* The summer heat induced a languor that made it difficult to concentrate. (Describes a feeling of lethargy or sluggishness)

* The paintings captured the languid grace of the dancers. (Describes a slow, graceful movement)

* A pervading languor hung over the city after the festival had ended. (Describes a general feeling of calmness or inactivity)

* There was a languor in her voice that hinted at boredom. (Describes a lack of energy or enthusiasm)

Notice how "languor" can be used to describe both physical and mental states.